/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:35:28,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:35:28,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:35:28,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:35:28,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:35:28,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:35:28,631 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:35:28,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:35:28,632 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:35:28,634 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:35:28,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:35:28,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:35:28,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:35:28,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:35:28,637 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:35:28,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:35:28,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:35:28,637 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:35:28,638 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:35:28,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:35:28,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:35:28,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:35:28,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:35:28,639 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:35:28,639 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:35:28,640 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:35:28,640 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:35:28,640 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:35:28,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:35:28,640 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:35:28,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:35:28,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:35:28,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:35:28,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:35:28,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:35:28,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:35:28,642 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:35:28,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:35:28,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:35:28,643 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:35:28,643 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:35:28,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:35:28,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:35:28,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:35:28,885 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:35:28,886 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:35:28,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2023-12-16 17:35:30,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:35:30,317 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:35:30,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c [2023-12-16 17:35:30,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44821c63/3ddfcfbe22f747779243ec6db4d9fbe6/FLAG5871b0345 [2023-12-16 17:35:30,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b44821c63/3ddfcfbe22f747779243ec6db4d9fbe6 [2023-12-16 17:35:30,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:35:30,358 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:35:30,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:35:30,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:35:30,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:35:30,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:35:30" (1/1) ... [2023-12-16 17:35:30,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300324ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:30, skipping insertion in model container [2023-12-16 17:35:30,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:35:30" (1/1) ... [2023-12-16 17:35:30,433 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:35:30,724 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c[10988,11001] [2023-12-16 17:35:30,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:35:30,960 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-16 17:35:30,973 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:35:31,006 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c[10988,11001] [2023-12-16 17:35:31,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:35:31,076 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:35:31,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-16 17:35:31,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [380] [2023-12-16 17:35:31,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [528] [2023-12-16 17:35:31,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [547] [2023-12-16 17:35:31,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [556] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [922] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1324] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1359] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2428] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2445] [2023-12-16 17:35:31,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2842] [2023-12-16 17:35:31,110 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product34.cil.c[10988,11001] [2023-12-16 17:35:31,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:35:31,231 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:35:31,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31 WrapperNode [2023-12-16 17:35:31,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:35:31,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:35:31,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:35:31,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:35:31,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,324 INFO L138 Inliner]: procedures = 136, calls = 218, calls flagged for inlining = 62, calls inlined = 59, statements flattened = 1017 [2023-12-16 17:35:31,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:35:31,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:35:31,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:35:31,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:35:31,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,376 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-12-16 17:35:31,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,377 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:35:31,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:35:31,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:35:31,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:35:31,409 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (1/1) ... [2023-12-16 17:35:31,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:35:31,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:35:31,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:35:31,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:35:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-16 17:35:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-16 17:35:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-16 17:35:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-16 17:35:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-16 17:35:31,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-16 17:35:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-16 17:35:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-16 17:35:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-16 17:35:31,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-16 17:35:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-16 17:35:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-16 17:35:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-16 17:35:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-16 17:35:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-16 17:35:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-16 17:35:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-16 17:35:31,498 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-16 17:35:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:35:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-16 17:35:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-16 17:35:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-16 17:35:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-16 17:35:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-16 17:35:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-16 17:35:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-16 17:35:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-16 17:35:31,501 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-16 17:35:31,501 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-16 17:35:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-16 17:35:31,501 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-16 17:35:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-16 17:35:31,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-16 17:35:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-16 17:35:31,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-16 17:35:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-16 17:35:31,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-16 17:35:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-16 17:35:31,502 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-16 17:35:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-16 17:35:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-16 17:35:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:35:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:35:31,700 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:35:31,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:35:32,371 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:35:32,480 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:35:32,480 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 17:35:32,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:35:32 BoogieIcfgContainer [2023-12-16 17:35:32,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:35:32,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:35:32,482 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:35:32,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:35:32,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:35:30" (1/3) ... [2023-12-16 17:35:32,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66760726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:35:32, skipping insertion in model container [2023-12-16 17:35:32,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:35:31" (2/3) ... [2023-12-16 17:35:32,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66760726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:35:32, skipping insertion in model container [2023-12-16 17:35:32,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:35:32" (3/3) ... [2023-12-16 17:35:32,485 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product34.cil.c [2023-12-16 17:35:32,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:35:32,496 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:35:32,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:35:32,533 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b0e0935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:35:32,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:35:32,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 412 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 317 states have internal predecessors, (497), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-16 17:35:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:35:32,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:32,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:32,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:32,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1491379960, now seen corresponding path program 1 times [2023-12-16 17:35:32,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:32,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835948372] [2023-12-16 17:35:32,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:32,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:32,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:32,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:35:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:32,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 17:35:32,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 17:35:32,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:32,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:32,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835948372] [2023-12-16 17:35:32,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835948372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:32,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:32,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:35:32,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232498126] [2023-12-16 17:35:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:32,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 17:35:32,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 17:35:32,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:35:32,953 INFO L87 Difference]: Start difference. First operand has 412 states, 312 states have (on average 1.5929487179487178) internal successors, (497), 317 states have internal predecessors, (497), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:33,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:33,067 INFO L93 Difference]: Finished difference Result 640 states and 973 transitions. [2023-12-16 17:35:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 17:35:33,086 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2023-12-16 17:35:33,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:33,095 INFO L225 Difference]: With dead ends: 640 [2023-12-16 17:35:33,096 INFO L226 Difference]: Without dead ends: 409 [2023-12-16 17:35:33,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 17:35:33,106 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:33,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 615 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-12-16 17:35:33,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2023-12-16 17:35:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 310 states have (on average 1.5806451612903225) internal successors, (490), 314 states have internal predecessors, (490), 70 states have call successors, (70), 28 states have call predecessors, (70), 28 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 17:35:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 629 transitions. [2023-12-16 17:35:33,167 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 629 transitions. Word has length 141 [2023-12-16 17:35:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:33,169 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 629 transitions. [2023-12-16 17:35:33,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:33,169 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 629 transitions. [2023-12-16 17:35:33,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-16 17:35:33,174 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:33,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:33,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:33,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:33,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:33,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash -366913925, now seen corresponding path program 1 times [2023-12-16 17:35:33,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:33,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305518250] [2023-12-16 17:35:33,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:33,382 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:33,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:33,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:33,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:35:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:33,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:35:33,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:35:33,738 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:33,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:33,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305518250] [2023-12-16 17:35:33,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305518250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:33,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:33,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442864754] [2023-12-16 17:35:33,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:33,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:33,741 INFO L87 Difference]: Start difference. First operand 409 states and 629 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:33,855 INFO L93 Difference]: Finished difference Result 813 states and 1252 transitions. [2023-12-16 17:35:33,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:33,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 124 [2023-12-16 17:35:33,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:33,859 INFO L225 Difference]: With dead ends: 813 [2023-12-16 17:35:33,859 INFO L226 Difference]: Without dead ends: 411 [2023-12-16 17:35:33,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:33,861 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 8 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:33,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2401 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:33,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-12-16 17:35:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2023-12-16 17:35:33,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 311 states have (on average 1.5787781350482315) internal successors, (491), 316 states have internal predecessors, (491), 70 states have call successors, (70), 28 states have call predecessors, (70), 29 states have return successors, (71), 68 states have call predecessors, (71), 69 states have call successors, (71) [2023-12-16 17:35:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 632 transitions. [2023-12-16 17:35:33,882 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 632 transitions. Word has length 124 [2023-12-16 17:35:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:33,882 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 632 transitions. [2023-12-16 17:35:33,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 632 transitions. [2023-12-16 17:35:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-16 17:35:33,885 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:33,885 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:33,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 17:35:34,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:34,091 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:34,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:34,092 INFO L85 PathProgramCache]: Analyzing trace with hash 196840547, now seen corresponding path program 1 times [2023-12-16 17:35:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321226281] [2023-12-16 17:35:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:34,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:34,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:34,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:34,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:35:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:34,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:35:34,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:34,492 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-16 17:35:34,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:34,493 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:34,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321226281] [2023-12-16 17:35:34,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [321226281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:34,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:34,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:34,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989415654] [2023-12-16 17:35:34,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:34,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:34,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:34,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:34,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:34,495 INFO L87 Difference]: Start difference. First operand 411 states and 632 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:34,641 INFO L93 Difference]: Finished difference Result 815 states and 1256 transitions. [2023-12-16 17:35:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:34,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 125 [2023-12-16 17:35:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:34,644 INFO L225 Difference]: With dead ends: 815 [2023-12-16 17:35:34,644 INFO L226 Difference]: Without dead ends: 413 [2023-12-16 17:35:34,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:34,646 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 8 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:34,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2387 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:34,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-16 17:35:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2023-12-16 17:35:34,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 312 states have (on average 1.5769230769230769) internal successors, (492), 318 states have internal predecessors, (492), 70 states have call successors, (70), 28 states have call predecessors, (70), 30 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2023-12-16 17:35:34,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 637 transitions. [2023-12-16 17:35:34,661 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 637 transitions. Word has length 125 [2023-12-16 17:35:34,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:34,661 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 637 transitions. [2023-12-16 17:35:34,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:34,661 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 637 transitions. [2023-12-16 17:35:34,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-12-16 17:35:34,663 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:34,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:34,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:34,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:34,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:34,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:34,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1589880326, now seen corresponding path program 1 times [2023-12-16 17:35:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:34,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194014600] [2023-12-16 17:35:34,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:34,885 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:34,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:34,895 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:34,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:35:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:35,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:35:35,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:35:35,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:35,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:35,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194014600] [2023-12-16 17:35:35,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1194014600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:35,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:35,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:35,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977845189] [2023-12-16 17:35:35,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:35,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:35,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:35,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:35,226 INFO L87 Difference]: Start difference. First operand 413 states and 637 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:35,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:35,333 INFO L93 Difference]: Finished difference Result 807 states and 1246 transitions. [2023-12-16 17:35:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:35,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 126 [2023-12-16 17:35:35,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:35,335 INFO L225 Difference]: With dead ends: 807 [2023-12-16 17:35:35,336 INFO L226 Difference]: Without dead ends: 413 [2023-12-16 17:35:35,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:35,338 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 8 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:35,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2401 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:35,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-16 17:35:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2023-12-16 17:35:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 312 states have (on average 1.5769230769230769) internal successors, (492), 318 states have internal predecessors, (492), 70 states have call successors, (70), 28 states have call predecessors, (70), 30 states have return successors, (74), 68 states have call predecessors, (74), 69 states have call successors, (74) [2023-12-16 17:35:35,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 636 transitions. [2023-12-16 17:35:35,350 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 636 transitions. Word has length 126 [2023-12-16 17:35:35,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:35,351 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 636 transitions. [2023-12-16 17:35:35,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:35,351 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 636 transitions. [2023-12-16 17:35:35,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 17:35:35,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:35,353 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:35,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:35,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:35,560 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:35,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:35,561 INFO L85 PathProgramCache]: Analyzing trace with hash -635862149, now seen corresponding path program 1 times [2023-12-16 17:35:35,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:35,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485473748] [2023-12-16 17:35:35,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:35,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:35,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:35,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:35,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:35:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:35,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:35:35,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 17:35:35,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:35,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:35,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485473748] [2023-12-16 17:35:35,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485473748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:35,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:35,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237093812] [2023-12-16 17:35:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:35,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:35,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:35,874 INFO L87 Difference]: Start difference. First operand 413 states and 636 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:35,975 INFO L93 Difference]: Finished difference Result 809 states and 1249 transitions. [2023-12-16 17:35:35,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 145 [2023-12-16 17:35:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:35,978 INFO L225 Difference]: With dead ends: 809 [2023-12-16 17:35:35,978 INFO L226 Difference]: Without dead ends: 415 [2023-12-16 17:35:35,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:35,980 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 6 mSDsluCounter, 1799 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:35,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2403 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:35,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-16 17:35:35,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2023-12-16 17:35:35,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 313 states have (on average 1.5750798722044728) internal successors, (493), 320 states have internal predecessors, (493), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2023-12-16 17:35:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 639 transitions. [2023-12-16 17:35:35,993 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 639 transitions. Word has length 145 [2023-12-16 17:35:35,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:35,993 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 639 transitions. [2023-12-16 17:35:35,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:35,993 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 639 transitions. [2023-12-16 17:35:35,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-16 17:35:35,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:35,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:36,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:36,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:36,203 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:36,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1829916255, now seen corresponding path program 1 times [2023-12-16 17:35:36,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:36,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362871691] [2023-12-16 17:35:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:36,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:36,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:36,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:36,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:35:36,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:36,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:35:36,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-16 17:35:36,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:36,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:36,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362871691] [2023-12-16 17:35:36,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362871691] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:36,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:36,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:36,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193738868] [2023-12-16 17:35:36,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:36,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:36,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:36,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:36,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:36,529 INFO L87 Difference]: Start difference. First operand 415 states and 639 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:36,620 INFO L93 Difference]: Finished difference Result 811 states and 1252 transitions. [2023-12-16 17:35:36,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:36,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2023-12-16 17:35:36,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:36,622 INFO L225 Difference]: With dead ends: 811 [2023-12-16 17:35:36,623 INFO L226 Difference]: Without dead ends: 417 [2023-12-16 17:35:36,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:36,624 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 6 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:36,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2401 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:36,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-16 17:35:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 415. [2023-12-16 17:35:36,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 313 states have (on average 1.5750798722044728) internal successors, (493), 320 states have internal predecessors, (493), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (76), 68 states have call predecessors, (76), 69 states have call successors, (76) [2023-12-16 17:35:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 639 transitions. [2023-12-16 17:35:36,637 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 639 transitions. Word has length 128 [2023-12-16 17:35:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:36,638 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 639 transitions. [2023-12-16 17:35:36,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-12-16 17:35:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 639 transitions. [2023-12-16 17:35:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 17:35:36,639 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:36,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:36,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:36,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:36,847 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:36,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1244968884, now seen corresponding path program 1 times [2023-12-16 17:35:36,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:36,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523533780] [2023-12-16 17:35:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:36,848 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:36,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:36,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:36,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:35:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:37,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:35:37,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:35:37,118 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:37,118 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:37,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523533780] [2023-12-16 17:35:37,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523533780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:37,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:37,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:37,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379120416] [2023-12-16 17:35:37,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:37,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:37,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:37,120 INFO L87 Difference]: Start difference. First operand 415 states and 639 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:37,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:37,221 INFO L93 Difference]: Finished difference Result 807 states and 1244 transitions. [2023-12-16 17:35:37,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:37,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 146 [2023-12-16 17:35:37,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:37,223 INFO L225 Difference]: With dead ends: 807 [2023-12-16 17:35:37,223 INFO L226 Difference]: Without dead ends: 415 [2023-12-16 17:35:37,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:37,225 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 8 mSDsluCounter, 1787 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:37,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2388 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-12-16 17:35:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2023-12-16 17:35:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 313 states have (on average 1.5750798722044728) internal successors, (493), 320 states have internal predecessors, (493), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2023-12-16 17:35:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 638 transitions. [2023-12-16 17:35:37,236 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 638 transitions. Word has length 146 [2023-12-16 17:35:37,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:37,236 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 638 transitions. [2023-12-16 17:35:37,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:37,236 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 638 transitions. [2023-12-16 17:35:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 17:35:37,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:37,238 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:37,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:37,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:37,445 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:37,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2010284529, now seen corresponding path program 2 times [2023-12-16 17:35:37,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:37,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347368785] [2023-12-16 17:35:37,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 17:35:37,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:37,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:37,447 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:37,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:35:37,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-12-16 17:35:37,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 17:35:37,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:37,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:37,730 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:37,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:37,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:37,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347368785] [2023-12-16 17:35:37,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347368785] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:37,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:37,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:37,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799161595] [2023-12-16 17:35:37,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:37,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:37,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:37,733 INFO L87 Difference]: Start difference. First operand 415 states and 638 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:37,779 INFO L93 Difference]: Finished difference Result 642 states and 966 transitions. [2023-12-16 17:35:37,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:37,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 147 [2023-12-16 17:35:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:37,782 INFO L225 Difference]: With dead ends: 642 [2023-12-16 17:35:37,782 INFO L226 Difference]: Without dead ends: 417 [2023-12-16 17:35:37,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:37,786 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 0 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:37,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1223 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-12-16 17:35:37,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2023-12-16 17:35:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 315 states have (on average 1.5714285714285714) internal successors, (495), 322 states have internal predecessors, (495), 70 states have call successors, (70), 28 states have call predecessors, (70), 31 states have return successors, (75), 68 states have call predecessors, (75), 69 states have call successors, (75) [2023-12-16 17:35:37,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 640 transitions. [2023-12-16 17:35:37,797 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 640 transitions. Word has length 147 [2023-12-16 17:35:37,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:37,798 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 640 transitions. [2023-12-16 17:35:37,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 640 transitions. [2023-12-16 17:35:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 17:35:37,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:37,800 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:37,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-16 17:35:38,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:38,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:38,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash -52545996, now seen corresponding path program 1 times [2023-12-16 17:35:38,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:38,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668666314] [2023-12-16 17:35:38,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:38,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:38,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:38,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:38,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:35:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:38,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:35:38,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-16 17:35:38,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:38,269 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:38,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668666314] [2023-12-16 17:35:38,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668666314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:38,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:38,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 17:35:38,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262602258] [2023-12-16 17:35:38,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:38,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:35:38,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:38,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:35:38,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:35:38,271 INFO L87 Difference]: Start difference. First operand 417 states and 640 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:38,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:38,394 INFO L93 Difference]: Finished difference Result 813 states and 1253 transitions. [2023-12-16 17:35:38,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:35:38,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 152 [2023-12-16 17:35:38,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:38,397 INFO L225 Difference]: With dead ends: 813 [2023-12-16 17:35:38,397 INFO L226 Difference]: Without dead ends: 419 [2023-12-16 17:35:38,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:38,399 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 6 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2390 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:38,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2390 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:35:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-12-16 17:35:38,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2023-12-16 17:35:38,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 316 states have (on average 1.5696202531645569) internal successors, (496), 324 states have internal predecessors, (496), 70 states have call successors, (70), 28 states have call predecessors, (70), 32 states have return successors, (79), 68 states have call predecessors, (79), 69 states have call successors, (79) [2023-12-16 17:35:38,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 645 transitions. [2023-12-16 17:35:38,414 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 645 transitions. Word has length 152 [2023-12-16 17:35:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:38,414 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 645 transitions. [2023-12-16 17:35:38,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-16 17:35:38,414 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 645 transitions. [2023-12-16 17:35:38,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-16 17:35:38,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:38,416 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:38,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:38,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:38,625 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:38,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:38,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1536858641, now seen corresponding path program 1 times [2023-12-16 17:35:38,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:38,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787629459] [2023-12-16 17:35:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:38,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:38,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:38,638 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:38,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:35:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:38,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:38,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:38,982 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:35:38,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:38,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:38,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787629459] [2023-12-16 17:35:38,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1787629459] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:38,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:38,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:38,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052737742] [2023-12-16 17:35:38,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:38,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:38,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:38,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:38,984 INFO L87 Difference]: Start difference. First operand 419 states and 645 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:39,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:39,035 INFO L93 Difference]: Finished difference Result 882 states and 1376 transitions. [2023-12-16 17:35:39,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:39,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2023-12-16 17:35:39,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:39,038 INFO L225 Difference]: With dead ends: 882 [2023-12-16 17:35:39,038 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 17:35:39,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:39,040 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 129 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:39,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1186 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:39,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 17:35:39,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 484. [2023-12-16 17:35:39,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 367 states have (on average 1.5885558583106267) internal successors, (583), 375 states have internal predecessors, (583), 84 states have call successors, (84), 28 states have call predecessors, (84), 32 states have return successors, (95), 82 states have call predecessors, (95), 83 states have call successors, (95) [2023-12-16 17:35:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 762 transitions. [2023-12-16 17:35:39,056 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 762 transitions. Word has length 135 [2023-12-16 17:35:39,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:39,056 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 762 transitions. [2023-12-16 17:35:39,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:39,057 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 762 transitions. [2023-12-16 17:35:39,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-16 17:35:39,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:39,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:39,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:39,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:39,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:39,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash -886521902, now seen corresponding path program 1 times [2023-12-16 17:35:39,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:39,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [96449885] [2023-12-16 17:35:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:39,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:39,276 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:39,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:35:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:39,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 17:35:39,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:39,618 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:35:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:39,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:39,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [96449885] [2023-12-16 17:35:39,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [96449885] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:35:39,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:35:39,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-12-16 17:35:39,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430703411] [2023-12-16 17:35:39,688 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:35:39,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 17:35:39,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 17:35:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:35:39,689 INFO L87 Difference]: Start difference. First operand 484 states and 762 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 17:35:39,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:39,930 INFO L93 Difference]: Finished difference Result 1129 states and 1839 transitions. [2023-12-16 17:35:39,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:35:39,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 154 [2023-12-16 17:35:39,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:39,935 INFO L225 Difference]: With dead ends: 1129 [2023-12-16 17:35:39,935 INFO L226 Difference]: Without dead ends: 904 [2023-12-16 17:35:39,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-16 17:35:39,936 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 433 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:39,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 2815 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:35:39,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-12-16 17:35:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 889. [2023-12-16 17:35:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 693 states have (on average 1.6493506493506493) internal successors, (1143), 701 states have internal predecessors, (1143), 163 states have call successors, (163), 28 states have call predecessors, (163), 32 states have return successors, (184), 161 states have call predecessors, (184), 162 states have call successors, (184) [2023-12-16 17:35:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1490 transitions. [2023-12-16 17:35:39,962 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1490 transitions. Word has length 154 [2023-12-16 17:35:39,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:39,962 INFO L495 AbstractCegarLoop]: Abstraction has 889 states and 1490 transitions. [2023-12-16 17:35:39,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-16 17:35:39,962 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1490 transitions. [2023-12-16 17:35:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 17:35:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:39,966 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:39,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:40,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:40,173 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:40,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1693109429, now seen corresponding path program 1 times [2023-12-16 17:35:40,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:40,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836632388] [2023-12-16 17:35:40,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:40,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:40,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:40,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-16 17:35:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:40,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:40,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:40,469 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:40,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:40,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:40,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836632388] [2023-12-16 17:35:40,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836632388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:40,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:40,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:40,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108765735] [2023-12-16 17:35:40,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:40,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:40,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:40,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:40,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:40,471 INFO L87 Difference]: Start difference. First operand 889 states and 1490 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:40,549 INFO L93 Difference]: Finished difference Result 2125 states and 3609 transitions. [2023-12-16 17:35:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:40,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2023-12-16 17:35:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:40,557 INFO L225 Difference]: With dead ends: 2125 [2023-12-16 17:35:40,557 INFO L226 Difference]: Without dead ends: 1296 [2023-12-16 17:35:40,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:40,561 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 127 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:40,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1232 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:40,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2023-12-16 17:35:40,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1291. [2023-12-16 17:35:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1016 states have (on average 1.6633858267716535) internal successors, (1690), 1024 states have internal predecessors, (1690), 242 states have call successors, (242), 28 states have call predecessors, (242), 32 states have return successors, (273), 240 states have call predecessors, (273), 241 states have call successors, (273) [2023-12-16 17:35:40,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 2205 transitions. [2023-12-16 17:35:40,610 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 2205 transitions. Word has length 160 [2023-12-16 17:35:40,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:40,611 INFO L495 AbstractCegarLoop]: Abstraction has 1291 states and 2205 transitions. [2023-12-16 17:35:40,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:40,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 2205 transitions. [2023-12-16 17:35:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 17:35:40,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:40,617 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:40,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:40,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:40,826 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:40,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1104057809, now seen corresponding path program 1 times [2023-12-16 17:35:40,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:40,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784473201] [2023-12-16 17:35:40,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:40,827 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:40,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:40,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:40,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:35:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:41,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:41,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:35:41,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:41,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:41,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [784473201] [2023-12-16 17:35:41,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [784473201] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:41,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:41,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714806235] [2023-12-16 17:35:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:41,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:41,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:41,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:41,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:41,140 INFO L87 Difference]: Start difference. First operand 1291 states and 2205 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:41,242 INFO L93 Difference]: Finished difference Result 3108 states and 5340 transitions. [2023-12-16 17:35:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:41,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-12-16 17:35:41,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:41,252 INFO L225 Difference]: With dead ends: 3108 [2023-12-16 17:35:41,253 INFO L226 Difference]: Without dead ends: 1927 [2023-12-16 17:35:41,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:41,259 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 125 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:41,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1221 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:41,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2023-12-16 17:35:41,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1922. [2023-12-16 17:35:41,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1528 states have (on average 1.6727748691099475) internal successors, (2556), 1536 states have internal predecessors, (2556), 361 states have call successors, (361), 28 states have call predecessors, (361), 32 states have return successors, (392), 359 states have call predecessors, (392), 360 states have call successors, (392) [2023-12-16 17:35:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 3309 transitions. [2023-12-16 17:35:41,386 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 3309 transitions. Word has length 143 [2023-12-16 17:35:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:41,386 INFO L495 AbstractCegarLoop]: Abstraction has 1922 states and 3309 transitions. [2023-12-16 17:35:41,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:41,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 3309 transitions. [2023-12-16 17:35:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-16 17:35:41,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:41,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:41,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:41,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:41,600 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:41,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:41,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1817280525, now seen corresponding path program 1 times [2023-12-16 17:35:41,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:41,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216040572] [2023-12-16 17:35:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:41,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:41,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:41,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:41,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:35:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:41,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:41,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:41,905 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:41,905 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:41,906 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:41,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216040572] [2023-12-16 17:35:41,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216040572] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:41,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:41,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:41,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662511631] [2023-12-16 17:35:41,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:41,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:41,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:41,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:41,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:41,908 INFO L87 Difference]: Start difference. First operand 1922 states and 3309 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:42,033 INFO L93 Difference]: Finished difference Result 4588 states and 7958 transitions. [2023-12-16 17:35:42,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2023-12-16 17:35:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:42,049 INFO L225 Difference]: With dead ends: 4588 [2023-12-16 17:35:42,049 INFO L226 Difference]: Without dead ends: 2896 [2023-12-16 17:35:42,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:42,058 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 123 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:42,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1214 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2896 states. [2023-12-16 17:35:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2896 to 2891. [2023-12-16 17:35:42,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2335 states have (on average 1.6805139186295504) internal successors, (3924), 2343 states have internal predecessors, (3924), 523 states have call successors, (523), 28 states have call predecessors, (523), 32 states have return successors, (570), 521 states have call predecessors, (570), 522 states have call successors, (570) [2023-12-16 17:35:42,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 5017 transitions. [2023-12-16 17:35:42,189 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 5017 transitions. Word has length 162 [2023-12-16 17:35:42,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:42,190 INFO L495 AbstractCegarLoop]: Abstraction has 2891 states and 5017 transitions. [2023-12-16 17:35:42,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:42,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 5017 transitions. [2023-12-16 17:35:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 17:35:42,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:42,204 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:42,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-12-16 17:35:42,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:42,412 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:42,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1582899675, now seen corresponding path program 1 times [2023-12-16 17:35:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159927863] [2023-12-16 17:35:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:42,414 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:42,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:42,433 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:42,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:35:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:42,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:42,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:42,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:42,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:42,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159927863] [2023-12-16 17:35:42,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159927863] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281433935] [2023-12-16 17:35:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:42,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:42,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:42,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:42,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:42,717 INFO L87 Difference]: Start difference. First operand 2891 states and 5017 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:42,924 INFO L93 Difference]: Finished difference Result 6928 states and 12106 transitions. [2023-12-16 17:35:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:42,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-12-16 17:35:42,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:42,948 INFO L225 Difference]: With dead ends: 6928 [2023-12-16 17:35:42,948 INFO L226 Difference]: Without dead ends: 4464 [2023-12-16 17:35:42,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:42,961 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 121 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:42,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1214 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:42,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2023-12-16 17:35:43,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 4459. [2023-12-16 17:35:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4459 states, 3658 states have (on average 1.686167304537999) internal successors, (6168), 3666 states have internal predecessors, (6168), 768 states have call successors, (768), 28 states have call predecessors, (768), 32 states have return successors, (841), 766 states have call predecessors, (841), 767 states have call successors, (841) [2023-12-16 17:35:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4459 states to 4459 states and 7777 transitions. [2023-12-16 17:35:43,187 INFO L78 Accepts]: Start accepts. Automaton has 4459 states and 7777 transitions. Word has length 163 [2023-12-16 17:35:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:43,188 INFO L495 AbstractCegarLoop]: Abstraction has 4459 states and 7777 transitions. [2023-12-16 17:35:43,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 4459 states and 7777 transitions. [2023-12-16 17:35:43,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-16 17:35:43,208 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:43,208 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:43,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:43,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:43,415 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:43,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1659780972, now seen corresponding path program 1 times [2023-12-16 17:35:43,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:43,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040254369] [2023-12-16 17:35:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:43,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:43,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:35:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:43,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:43,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:35:43,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:43,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:43,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040254369] [2023-12-16 17:35:43,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040254369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:43,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:43,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:43,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846376850] [2023-12-16 17:35:43,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:43,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:43,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:43,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:43,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:43,704 INFO L87 Difference]: Start difference. First operand 4459 states and 7777 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:43,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:43,930 INFO L93 Difference]: Finished difference Result 10881 states and 19073 transitions. [2023-12-16 17:35:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2023-12-16 17:35:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:43,977 INFO L225 Difference]: With dead ends: 10881 [2023-12-16 17:35:43,977 INFO L226 Difference]: Without dead ends: 7136 [2023-12-16 17:35:43,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:43,990 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 119 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:43,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 1220 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:43,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7136 states. [2023-12-16 17:35:44,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7136 to 7131. [2023-12-16 17:35:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7131 states, 5837 states have (on average 1.681000513962652) internal successors, (9812), 5845 states have internal predecessors, (9812), 1261 states have call successors, (1261), 28 states have call predecessors, (1261), 32 states have return successors, (1378), 1259 states have call predecessors, (1378), 1260 states have call successors, (1378) [2023-12-16 17:35:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7131 states to 7131 states and 12451 transitions. [2023-12-16 17:35:44,247 INFO L78 Accepts]: Start accepts. Automaton has 7131 states and 12451 transitions. Word has length 146 [2023-12-16 17:35:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:44,247 INFO L495 AbstractCegarLoop]: Abstraction has 7131 states and 12451 transitions. [2023-12-16 17:35:44,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:44,247 INFO L276 IsEmpty]: Start isEmpty. Operand 7131 states and 12451 transitions. [2023-12-16 17:35:44,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-16 17:35:44,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:44,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:44,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:44,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:44,481 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:44,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 779707767, now seen corresponding path program 1 times [2023-12-16 17:35:44,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:44,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669027887] [2023-12-16 17:35:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:44,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:44,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:44,483 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:44,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:35:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:44,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:44,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:44,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:44,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:44,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669027887] [2023-12-16 17:35:44,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669027887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:44,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:44,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:44,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579702154] [2023-12-16 17:35:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:44,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:44,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:44,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:44,742 INFO L87 Difference]: Start difference. First operand 7131 states and 12451 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:45,021 INFO L93 Difference]: Finished difference Result 18016 states and 31646 transitions. [2023-12-16 17:35:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:45,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2023-12-16 17:35:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:45,057 INFO L225 Difference]: With dead ends: 18016 [2023-12-16 17:35:45,057 INFO L226 Difference]: Without dead ends: 11965 [2023-12-16 17:35:45,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:45,078 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 117 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:45,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1222 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11965 states. [2023-12-16 17:35:45,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11965 to 11960. [2023-12-16 17:35:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11960 states, 9844 states have (on average 1.6814303128809427) internal successors, (16552), 9852 states have internal predecessors, (16552), 2083 states have call successors, (2083), 28 states have call predecessors, (2083), 32 states have return successors, (2278), 2081 states have call predecessors, (2278), 2082 states have call successors, (2278) [2023-12-16 17:35:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11960 states to 11960 states and 20913 transitions. [2023-12-16 17:35:45,510 INFO L78 Accepts]: Start accepts. Automaton has 11960 states and 20913 transitions. Word has length 165 [2023-12-16 17:35:45,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:45,510 INFO L495 AbstractCegarLoop]: Abstraction has 11960 states and 20913 transitions. [2023-12-16 17:35:45,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 11960 states and 20913 transitions. [2023-12-16 17:35:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-16 17:35:45,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:45,558 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:45,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:45,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:45,765 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:45,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash 763149257, now seen corresponding path program 1 times [2023-12-16 17:35:45,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:45,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360832535] [2023-12-16 17:35:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:45,767 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:45,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:45,768 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:45,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:35:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:46,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:46,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:46,045 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:46,045 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:46,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360832535] [2023-12-16 17:35:46,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360832535] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:46,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:46,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:46,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061253478] [2023-12-16 17:35:46,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:46,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:46,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:46,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:46,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:46,047 INFO L87 Difference]: Start difference. First operand 11960 states and 20913 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:46,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:46,567 INFO L93 Difference]: Finished difference Result 28562 states and 49918 transitions. [2023-12-16 17:35:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:46,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 166 [2023-12-16 17:35:46,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:46,644 INFO L225 Difference]: With dead ends: 28562 [2023-12-16 17:35:46,645 INFO L226 Difference]: Without dead ends: 18637 [2023-12-16 17:35:46,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:46,680 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 115 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:46,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1189 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:46,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18637 states. [2023-12-16 17:35:47,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18637 to 18632. [2023-12-16 17:35:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18632 states, 15313 states have (on average 1.6595702997453143) internal successors, (25413), 15321 states have internal predecessors, (25413), 3286 states have call successors, (3286), 28 states have call predecessors, (3286), 32 states have return successors, (3625), 3284 states have call predecessors, (3625), 3285 states have call successors, (3625) [2023-12-16 17:35:47,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18632 states to 18632 states and 32324 transitions. [2023-12-16 17:35:47,438 INFO L78 Accepts]: Start accepts. Automaton has 18632 states and 32324 transitions. Word has length 166 [2023-12-16 17:35:47,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:47,439 INFO L495 AbstractCegarLoop]: Abstraction has 18632 states and 32324 transitions. [2023-12-16 17:35:47,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 18632 states and 32324 transitions. [2023-12-16 17:35:47,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 17:35:47,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:47,479 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:47,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:47,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:47,687 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:47,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2014395509, now seen corresponding path program 1 times [2023-12-16 17:35:47,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:47,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [833534006] [2023-12-16 17:35:47,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:47,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:47,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:47,705 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:47,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:35:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:47,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:47,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:47,988 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:35:47,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:47,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:47,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [833534006] [2023-12-16 17:35:47,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [833534006] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:47,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:47,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:47,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729642609] [2023-12-16 17:35:47,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:47,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:47,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:47,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:47,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:47,990 INFO L87 Difference]: Start difference. First operand 18632 states and 32324 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:49,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:49,003 INFO L93 Difference]: Finished difference Result 49195 states and 85699 transitions. [2023-12-16 17:35:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:49,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2023-12-16 17:35:49,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:49,126 INFO L225 Difference]: With dead ends: 49195 [2023-12-16 17:35:49,126 INFO L226 Difference]: Without dead ends: 33218 [2023-12-16 17:35:49,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:49,166 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 113 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:49,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 1220 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33218 states. [2023-12-16 17:35:50,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33218 to 33213. [2023-12-16 17:35:50,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33213 states, 27444 states have (on average 1.6570470776854687) internal successors, (45476), 27452 states have internal predecessors, (45476), 5736 states have call successors, (5736), 28 states have call predecessors, (5736), 32 states have return successors, (6349), 5734 states have call predecessors, (6349), 5735 states have call successors, (6349) [2023-12-16 17:35:50,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33213 states to 33213 states and 57561 transitions. [2023-12-16 17:35:50,710 INFO L78 Accepts]: Start accepts. Automaton has 33213 states and 57561 transitions. Word has length 149 [2023-12-16 17:35:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:50,711 INFO L495 AbstractCegarLoop]: Abstraction has 33213 states and 57561 transitions. [2023-12-16 17:35:50,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-16 17:35:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 33213 states and 57561 transitions. [2023-12-16 17:35:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 17:35:50,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:50,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:50,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-16 17:35:50,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:50,982 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:50,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1666942833, now seen corresponding path program 1 times [2023-12-16 17:35:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:50,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195360597] [2023-12-16 17:35:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:50,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:50,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:50,984 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:51,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:35:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:51,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:51,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:51,250 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:51,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:51,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195360597] [2023-12-16 17:35:51,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195360597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:51,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:51,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:51,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981795021] [2023-12-16 17:35:51,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:51,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:51,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:51,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:51,252 INFO L87 Difference]: Start difference. First operand 33213 states and 57561 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:52,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:52,997 INFO L93 Difference]: Finished difference Result 90497 states and 157391 transitions. [2023-12-16 17:35:52,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:52,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2023-12-16 17:35:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:35:53,366 INFO L225 Difference]: With dead ends: 90497 [2023-12-16 17:35:53,366 INFO L226 Difference]: Without dead ends: 60830 [2023-12-16 17:35:53,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:53,421 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 111 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:35:53,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1223 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:35:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60830 states. [2023-12-16 17:35:55,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60830 to 60825. [2023-12-16 17:35:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60825 states, 50543 states have (on average 1.6534831727440003) internal successors, (83572), 50551 states have internal predecessors, (83572), 10249 states have call successors, (10249), 28 states have call predecessors, (10249), 32 states have return successors, (11394), 10247 states have call predecessors, (11394), 10248 states have call successors, (11394) [2023-12-16 17:35:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60825 states to 60825 states and 105215 transitions. [2023-12-16 17:35:55,948 INFO L78 Accepts]: Start accepts. Automaton has 60825 states and 105215 transitions. Word has length 168 [2023-12-16 17:35:55,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:35:55,949 INFO L495 AbstractCegarLoop]: Abstraction has 60825 states and 105215 transitions. [2023-12-16 17:35:55,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 60825 states and 105215 transitions. [2023-12-16 17:35:56,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-16 17:35:56,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:35:56,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:35:56,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-16 17:35:56,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:56,249 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:35:56,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:35:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1514688374, now seen corresponding path program 1 times [2023-12-16 17:35:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:35:56,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543088818] [2023-12-16 17:35:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:35:56,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:35:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:35:56,252 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:35:56,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:35:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:35:56,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:35:56,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:35:56,578 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-16 17:35:56,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:35:56,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:35:56,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543088818] [2023-12-16 17:35:56,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543088818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:35:56,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:35:56,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:35:56,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642791752] [2023-12-16 17:35:56,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:35:56,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:35:56,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:35:56,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:35:56,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:35:56,581 INFO L87 Difference]: Start difference. First operand 60825 states and 105215 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:35:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:35:59,950 INFO L93 Difference]: Finished difference Result 113849 states and 197432 transitions. [2023-12-16 17:35:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:35:59,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 169 [2023-12-16 17:35:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:36:00,552 INFO L225 Difference]: With dead ends: 113849 [2023-12-16 17:36:00,552 INFO L226 Difference]: Without dead ends: 113624 [2023-12-16 17:36:00,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:36:00,603 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 109 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:36:00,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:36:00,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113624 states. [2023-12-16 17:36:04,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113624 to 113619. [2023-12-16 17:36:04,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113619 states, 94969 states have (on average 1.648790658004191) internal successors, (156584), 94977 states have internal predecessors, (156584), 18617 states have call successors, (18617), 28 states have call predecessors, (18617), 32 states have return successors, (20808), 18615 states have call predecessors, (20808), 18616 states have call successors, (20808) [2023-12-16 17:36:05,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113619 states to 113619 states and 196009 transitions. [2023-12-16 17:36:05,023 INFO L78 Accepts]: Start accepts. Automaton has 113619 states and 196009 transitions. Word has length 169 [2023-12-16 17:36:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:36:05,023 INFO L495 AbstractCegarLoop]: Abstraction has 113619 states and 196009 transitions. [2023-12-16 17:36:05,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-16 17:36:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 113619 states and 196009 transitions. [2023-12-16 17:36:05,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-16 17:36:05,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:36:05,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:36:05,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2023-12-16 17:36:05,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:36:05,345 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:36:05,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:36:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash -14080475, now seen corresponding path program 1 times [2023-12-16 17:36:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:36:05,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011620640] [2023-12-16 17:36:05,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:36:05,346 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:36:05,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:36:05,347 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:36:05,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:36:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:36:05,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-16 17:36:05,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:36:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 17:36:05,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 17:36:06,390 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 17:36:06,391 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:36:06,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011620640] [2023-12-16 17:36:06,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011620640] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 17:36:06,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 17:36:06,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-12-16 17:36:06,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681454380] [2023-12-16 17:36:06,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 17:36:06,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-16 17:36:06,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:36:06,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-16 17:36:06,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2023-12-16 17:36:06,393 INFO L87 Difference]: Start difference. First operand 113619 states and 196009 transitions. Second operand has 16 states, 16 states have (on average 11.375) internal successors, (182), 14 states have internal predecessors, (182), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) [2023-12-16 17:36:19,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:36:19,665 INFO L93 Difference]: Finished difference Result 334645 states and 583995 transitions. [2023-12-16 17:36:19,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 17:36:19,666 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.375) internal successors, (182), 14 states have internal predecessors, (182), 4 states have call successors, (37), 6 states have call predecessors, (37), 9 states have return successors, (33), 6 states have call predecessors, (33), 4 states have call successors, (33) Word has length 152 [2023-12-16 17:36:19,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:36:21,439 INFO L225 Difference]: With dead ends: 334645 [2023-12-16 17:36:21,439 INFO L226 Difference]: Without dead ends: 334425 [2023-12-16 17:36:21,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2023-12-16 17:36:21,579 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 1398 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 5170 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 5437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 5170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:36:21,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 3014 Invalid, 5437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 5170 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-16 17:36:22,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334425 states. Received shutdown request... [2023-12-16 17:36:31,836 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:36:31,836 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:36:32,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:36:32,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 17:36:33,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334425 to 227239. [2023-12-16 17:36:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227239 states, 189941 states have (on average 1.6487909403446332) internal successors, (313173), 189954 states have internal predecessors, (313173), 37232 states have call successors, (37232), 57 states have call predecessors, (37232), 65 states have return successors, (45978), 37231 states have call predecessors, (45978), 37230 states have call successors, (45978) [2023-12-16 17:36:33,864 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:36:33,865 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:36:33,884 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:36:33,886 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:36:33,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:36:33 BoogieIcfgContainer [2023-12-16 17:36:33,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:36:33,887 INFO L158 Benchmark]: Toolchain (without parser) took 63529.49ms. Allocated memory was 319.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 267.4MB in the beginning and 5.7GB in the end (delta: -5.5GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 175.1MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 872.91ms. Allocated memory is still 319.8MB. Free memory was 266.9MB in the beginning and 283.4MB in the end (delta: -16.5MB). Peak memory consumption was 68.4MB. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.30ms. Allocated memory is still 319.8MB. Free memory was 283.4MB in the beginning and 277.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: Boogie Preprocessor took 83.42ms. Allocated memory is still 319.8MB. Free memory was 277.1MB in the beginning and 269.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: RCFGBuilder took 1071.60ms. Allocated memory is still 319.8MB. Free memory was 268.7MB in the beginning and 276.7MB in the end (delta: -7.9MB). Peak memory consumption was 104.3MB. Max. memory is 8.0GB. [2023-12-16 17:36:33,888 INFO L158 Benchmark]: TraceAbstraction took 61405.73ms. Allocated memory was 319.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 276.2MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-16 17:36:33,894 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 175.1MB. Free memory is still 128.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 872.91ms. Allocated memory is still 319.8MB. Free memory was 266.9MB in the beginning and 283.4MB in the end (delta: -16.5MB). Peak memory consumption was 68.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 91.30ms. Allocated memory is still 319.8MB. Free memory was 283.4MB in the beginning and 277.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.42ms. Allocated memory is still 319.8MB. Free memory was 277.1MB in the beginning and 269.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 1071.60ms. Allocated memory is still 319.8MB. Free memory was 268.7MB in the beginning and 276.7MB in the end (delta: -7.9MB). Peak memory consumption was 104.3MB. Max. memory is 8.0GB. * TraceAbstraction took 61405.73ms. Allocated memory was 319.8MB in the beginning and 7.8GB in the end (delta: 7.5GB). Free memory was 276.2MB in the beginning and 5.7GB in the end (delta: -5.4GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 48]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] - GenericResultAtLocation [Line: 380]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [380] - GenericResultAtLocation [Line: 528]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [528] - GenericResultAtLocation [Line: 547]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [547] - GenericResultAtLocation [Line: 556]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [556] - GenericResultAtLocation [Line: 922]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [922] - GenericResultAtLocation [Line: 1324]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1324] - GenericResultAtLocation [Line: 1359]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1359] - GenericResultAtLocation [Line: 2428]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2428] - GenericResultAtLocation [Line: 2445]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2445] - GenericResultAtLocation [Line: 2842]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2842] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 552]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 552). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 412 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 61.4s, OverallIterations: 22, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.5s, AutomataDifference: 25.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3510 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3190 mSDsluCounter, 37796 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24611 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6564 IncrementalHoareTripleChecker+Invalid, 6869 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 13185 mSDtfsCounter, 6564 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3571 GetRequests, 3499 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113619occurred in iteration=21, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 22.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 72 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 3266 NumberOfCodeBlocks, 3175 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3548 ConstructedInterpolants, 0 QuantifiedInterpolants, 4369 SizeOfPredicates, 33 NumberOfNonLiveVariables, 13617 ConjunctsInSsa, 91 ConjunctsInUnsatCore, 24 InterpolantComputations, 20 PerfectInterpolantSequences, 1059/1077 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown